Factors Affecting Biological Diversity-Standard Bio 4.4

Question 1

Fill in the blank below with the word that best completes the sentence.Natural selection leads to , a process of change in a population over time.

Revolt · Accepted Answer

evolution

Question 2

Complete the sentence below by selecting the correct words from the drop-down menus.Factors that affect natural selection include , , and .

Revolt · Accepted Answer

variation; similarity; Selection 1: variation; Selection 2: overpopulation; Selection 3: adaptation

Question 3

Favors traits at the two extremes:

Revolt · Accepted Answer

disruptive selection

Question 4

One extreme trait is favored:

Revolt · Accepted Answer

directional selection

Question 5

Diversity decreases:

Revolt · Accepted Answer

stabilizing selection

Question 6

Diversity increases:

Revolt · Accepted Answer

disruptive selection

Question 7

What term describes an evolutionary process through which a new species emerges?

Revolt · Accepted Answer

speciation

Question 8

A population of wildflowers is separated by an eight-lane superhighway. Pollen is often carried by the wind across the highway and can pollinate the flowers on the other side of the highway. Can speciation occur in this situation?

Revolt · Accepted Answer

No, because the populations are not reproductively isolated.

Question 9

A population of deer is separated by an emerging volcano. The two populations come back into contact 200 years later, but are incapable of breeding. Which of the following best describes the process that occurred?

Revolt · Accepted Answer

speciation

Question 10

Which piece of evidence would most go against the scientist’s argument and suggest that the butterflies are actually different species?

Revolt · Accepted Answer

The butterflies have different mating seasons.

Factors Affecting Biological Diversity-Standard Bio 4.4 Answers

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